A comparative study of test methods for assessment of fire safety performance of bus interior materials
Version of Record online: 2 OCT 2011
Copyright © 2011 John Wiley & Sons, Ltd.
Fire and Materials
Volume 37, Issue 5, pages 350–357, August/September 2013
How to Cite
Försth, M., Modin, H. and Sundström, B. (2013), A comparative study of test methods for assessment of fire safety performance of bus interior materials. Fire Mater., 37: 350–357. doi: 10.1002/fam.1116
- Issue online: 8 AUG 2013
- Version of Record online: 2 OCT 2011
- Manuscript Accepted: 5 JUN 2011
- Manuscript Revised: 26 APR 2011
- Manuscript Received: 22 DEC 2010
- interior materials;
- ISO 3795;
- FMVSS 302;
- ISO 6941;
- ISO 5658-2;
- ECE Reg. No 118;
- EU directive 95/28/CE
This work concerns the assessment of fire performance of interior materials in buses. The widely used test method ISO 3795/FMVSS 302 has received much criticism mainly based on the fact that the test is a small-scale method not suited for bus fires induced by for example fire in the engine compartment or fire in a tyre. Furthermore, test specimens are oriented horizontally, whereas much fire spread in a real bus fire occurs on vertically oriented products. Seventeen products were investigated: 11 textiles, four solids and two insulations. Three test methods were compared: ISO 3795, ISO 6941 and ISO 5658-2. Given the existing criteria for interior materials, it was found that ISO 6941 and ISO 5658-2 place harder requirements on the materials.
When the three methods were compared, it was found that ISO 3795/FMVSS 302 and ISO 6941 are insufficient for simulating bus fires typically occurring today. Such fires are often initiated by a fire in the engine compartment or in a tyre and can hardly be simulated by small-scale methods as ISO 3795/FMVSS 302 or ISO 6941 even if the ISO 6941 method to some extent gives results similar to the established large-scale ISO 5658-2 method. Copyright © 2011 John Wiley & Sons, Ltd.